Ambient noise station-correlation spectra for USArray stations

B13A-TA secondary stations.

A10A-TA A11A-TA A12A-TA A13A-TA B09A-TA B10A-TA B11A-TA B12A-TA C09A-TA C10A-TA
C12A-TA C13A-TA C14A-TA D10A-TA D11A-TA D12A-TA D13A-TA D14A-TA D15A-TA E10A-TA
E11A-TA E13A-TA E14A-TA E15A-TA F12A-TA F13A-TA F14A-TA
NEW-US